diff --git a/testcases/smoke-test/smoke-basic-os/oe_test_sed_001/oe_test_sed_001.sh b/testcases/smoke-test/smoke-basic-os/oe_test_sed_001/oe_test_sed_001.sh
index 99787e40dd0592803249b6acdbbd06d99b3090c1..814d3aacd6dfadab2aa7247c730c42c620c8b50b 100644
--- a/testcases/smoke-test/smoke-basic-os/oe_test_sed_001/oe_test_sed_001.sh
+++ b/testcases/smoke-test/smoke-basic-os/oe_test_sed_001/oe_test_sed_001.sh
@@ -36,7 +36,7 @@ function run_test() {
     CHECK_RESULT $? 0 0 "Return value error"
     sed --v
     CHECK_RESULT $? 0 0 "Version is error"
-    sed --help | grep "用法"
+    sed --help | grep -iE "用法|Usage"
     CHECK_RESULT $? 0 0 "sed --help fail"
     sed -i '1i testline' /tmp/test_sed
     grep testline /tmp/test_sed
diff --git a/testcases/smoke-test/smoke-basic-os/oe_test_stat/oe_test_stat.sh b/testcases/smoke-test/smoke-basic-os/oe_test_stat/oe_test_stat.sh
index cf0aebb6c49cedc830e234998e776abba7cb46b1..40a68e3ba2abc375a48c6d1a7a8adfb484104b20 100644
--- a/testcases/smoke-test/smoke-basic-os/oe_test_stat/oe_test_stat.sh
+++ b/testcases/smoke-test/smoke-basic-os/oe_test_stat/oe_test_stat.sh
@@ -21,7 +21,7 @@ source "${OET_PATH}"/libs/locallibs/common_lib.sh
 
 function run_test() {
     LOG_INFO "Start to run test."
-    stat --help | grep "用法"
+    stat --help | grep -iE "用法|Usage"
     CHECK_RESULT $? 0 0 "Failed to execute stat --help"
     stat --version | grep "Copyright (C)"
     CHECK_RESULT $? 0 0 "Failed to execute stat --version"
diff --git a/testcases/smoke-test/smoke-basic-os/oe_test_syslog_dmesg_001/oe_test_syslog_dmesg_001.sh b/testcases/smoke-test/smoke-basic-os/oe_test_syslog_dmesg_001/oe_test_syslog_dmesg_001.sh
index 7a044b5f654851d1872cdb16bc4bbd266262d755..5e1da9356013ab1a047b12ce39851134309cea1e 100644
--- a/testcases/smoke-test/smoke-basic-os/oe_test_syslog_dmesg_001/oe_test_syslog_dmesg_001.sh
+++ b/testcases/smoke-test/smoke-basic-os/oe_test_syslog_dmesg_001/oe_test_syslog_dmesg_001.sh
@@ -21,7 +21,7 @@ source "${OET_PATH}"/libs/locallibs/common_lib.sh
 
 function run_test() {
     LOG_INFO "Start to run test."
-    dmesg --help | grep "用法"
+    dmesg --help | grep -iE "用法|Usage"
     CHECK_RESULT $? 0 0 "Failed to execute dmesg --help"
     dmesg -V
     CHECK_RESULT $? 0 0 "Failed to execute dmesg -V"